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Monthly
Precipitation
Temperature
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Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Sandy River at Lewis and Clark State Park, OR
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Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
31°
10
24°
11
21°
12
17°
13
19°
14
23°
15
24°
16
22°
17
25°
18
27°
19
25°
20
24°
21
23°
22
24°
23
25°
24
25
26
27
28
29
30
Forecast
Wednesday, September 9, 2026
Day
31°
Feels 31
Wind
9 km/h NW
Gust
14 km/h
Humidity
29%
P.O.P
10%
Night
13°
Feels 13
Wind
8 km/h E
Gust
12 km/h
Humidity
88%
P.O.P
10%
Historical Averages
Sep 9
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
September
Average Temperature
High
23°
Feels 23
Low
12°
Feels 11
Average Precipitation
8 Days
Rain amount
46mm
Snow amount
0cm